Devexpress xtraTabControl1实现多标签页选项卡，关闭选项卡，刷新重新加载

        //选项卡
        Dictionary<string, XtraTabPage> dictXtraTabPage = new Dictionary<string, XtraTabPage>();
        Dictionary<string, Form> dictXtraForm = new Dictionary<string, Form>();

        public void ShowMDIForm(string cText, Form frm)
        {
            //判断是否已创建过
            if (dictXtraTabPage.ContainsKey(cText)）
            {
                xtraTabControl1.SelectedTabPage = dictXtraTabPage[cText];
                return;
            }
		
	/*使用以下这段注释，需要把上面的if语句注释掉。
		//判断是否已创建过，排除已创建的选项卡，重新加载窗体和传参。
            if (dictXtraTabPage.ContainsKey(cText)&& frm.Text != "选项卡名称")
            {
                xtraTabControl1.SelectedTabPage = dictXtraTabPage[cText];
                return;
            }

            //已经创建过选项卡，先移除它，重新加载，达到刷新窗体数据的目的)

            if (dictXtraTabPage.ContainsKey(cText) && frm.Text=="选项卡名称")
            {
                xtraTabControl1.TabPages.Remove(dictXtraTabPage["选项卡名称"]);
                dictXtraTabPage.Remove(cText);
                dictXtraForm.Remove(cText);
            }
	*/

            frm.Visible = true;
            frm.Dock = DockStyle.Fill;
            frm.FormBorderStyle = FormBorderStyle.None;
            frm.WindowState = FormWindowState.Maximized;
            frm.TopLevel = false;//注意这里，否则加载不出来

            XtraTabPage xpage = new XtraTabPage();
            xpage.Controls.Add(frm);//添加要增加的控件

            xpage.Text = cText;//添加名称
            xpage.ShowCloseButton = DevExpress.Utils.DefaultBoolean.True;
            xtraTabControl1.TabPages.Add(xpage);
            xtraTabControl1.SelectedTabPage = xpage;//显示该页

            dictXtraTabPage.Add(cText, xpage);//加入XtraTabPage字典
            dictXtraForm.Add(cText, frm);//加入XtraForm字典

        }

        //关闭选项卡
        private void xtraTabControl1_CloseButtonClick(object sender, EventArgs e)
        {
            ClosePageButtonEventArgs a = (ClosePageButtonEventArgs)e;
            string cText = a.Page.Text;

            if (dictXtraForm.ContainsKey(cText))
            {
                Form form = dictXtraForm[cText] as Form;
                form.Close();
                form.Dispose();
                dictXtraForm.Remove(cText);
                xtraTabControl1.SelectedTabPageIndex = xtraTabControl1.SelectedTabPageIndex >= 1 ? xtraTabControl1.SelectedTabPageIndex - 1 : 0;
            }

            if (dictXtraTabPage.ContainsKey(cText))
            {
                xtraTabControl1.TabPages.Remove((XtraTabPage)a.Page);
                dictXtraTabPage.Remove(cText);
            }
        }


	//菜单栏点击窗体
      private void ToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            Form form = new Form();
            ShowMDIForm("选项卡名称",from);
        }